- 1(current)
Q. No.A \(\mathrm{p} \text-\)type extrinsic semiconductor is obtained when Germanium is doped with:
1. antimony
2. phosphorous
3. arsenic
4. boron
1. antimony
2. phosphorous
3. arsenic
4. boron
Subtopic: Â Types of Semiconductors |
 76%
Level 2: 60%+
NEET - 2023
Hints
The electron concentration in an \(\mathrm{n\text-}\)type semiconductor is the same as the hole concentration in a \(\mathrm{p\text{-}}\)type semiconductor. An external field (electric) is applied across each of them. Compare the currents in them.
| 1. | current in \(\mathrm{n\text-}\)type \(>\) current in \(\mathrm{p\text{-}}\)type. |
| 2. | no current will flow in \(\mathrm{p\text{-}}\)type, current will only flow in \(\mathrm{n\text-}\)type. |
| 3. | current in \(\mathrm{n\text-}\)type \(=\) current in \(\mathrm{p\text{-}}\)type. |
| 4. | current in \(\mathrm{p\text{-}}\)type \(>\) current in \(\mathrm{n\text-}\)type. |
Subtopic: Â Types of Semiconductors |
 52%
Level 3: 35%-60%
NEET - 2021
Hints
An intrinsic semiconductor is converted into an \(\mathrm{n\text{-}}\)type extrinsic semiconductor by doping it with:
1. phosphorous
2. aluminium
3. silver
4. germanium
Subtopic: Â Types of Semiconductors |
 82%
Level 1: 80%+
NEET - 2020
Hints
For a \(\mathrm{p}\text{-}\)type semiconductor, which of the following statements is true?
| 1. | Electrons are the majority carriers and pentavalent atoms are the dopants. |
| 2. | Electrons are the majority carriers and trivalent atoms are the dopants. |
| 3. | Holes are the majority carriers and trivalent atoms are the dopants. |
| 4. | Holes are the majority carriers and pentavalent atoms are the dopants. |
Subtopic: Â Types of Semiconductors |
 82%
Level 1: 80%+
NEET - 2019
Hints
- 1(current)
Q. No.
© 2025 GoodEd Technologies Pvt. Ltd.